Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Unknown
Privileges Required
Unknown
Attack Vector
Unknown
0

CVE-2024-1635

Disclosure Date: February 19, 2024 •
CVE-2024-1635
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

A vulnerability was found in Undertow. This vulnerability impacts a server that supports the wildfly-http-client protocol. Whenever a malicious user opens and closes a connection with the HTTP port of the server and then closes the connection immediately, the server will end with both memory and open file limits exhausted at some point, depending on the amount of memory available.

At HTTP upgrade to remoting, the WriteTimeoutStreamSinkConduit leaks connections if RemotingConnection is closed by Remoting ServerConnectionOpenListener. Because the remoting connection originates in Undertow as part of the HTTP upgrade, there is an external layer to the remoting connection. This connection is unaware of the outermost layer when closing the connection during the connection opening procedure. Hence, the Undertow WriteTimeoutStreamSinkConduit is not notified of the closed connection in this scenario. Because WriteTimeoutStreamSinkConduit creates a timeout task, the whole dependency tree leaks via that task, which is added to XNIO WorkerThread. So, the workerThread points to the Undertow conduit, which contains the connections and causes the leak.

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CVSS V3 Severity and Metrics
Base Score:
None
Impact Score:
Unknown
Exploitability Score:
Unknown
Vector:
Unknown
Attack Vector (AV):
Unknown
Attack Complexity (AC):
Unknown
Privileges Required (PR):
Unknown
User Interaction (UI):
Unknown
Scope (S):
Unknown
Confidentiality (C):
Unknown
Integrity (I):
Unknown
Availability (A):
Unknown

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Red Hat JBoss Enterprise Application Platform 7 not down converted
Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 not down converted
Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 not down converted
Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 not down converted
Red Hat Single Sign-On 7.6 for RHEL 7 not down converted
Red Hat Single Sign-On 7.6 for RHEL 8 not down converted
Red Hat Single Sign-On 7.6 for RHEL 9 not down converted
RHEL-8 based Middleware Containers not down converted
RHSSO 7.6.8 not down converted
OpenShift Serverless not down converted
Red Hat build of Apache Camel for Quarkus not down converted
Red Hat build of Apache Camel for Spring Boot 3 not down converted
Red Hat build of Apache Camel for Spring Boot 4 not down converted
Red Hat build of Apicurio Registry not down converted
Red Hat Build of Keycloak not down converted
Red Hat build of OptaPlanner 8 not down converted
Red Hat build of Quarkus not down converted
Red Hat Data Grid 8 not down converted
Red Hat Fuse 7 not down converted
Red Hat Integration Camel K not down converted
Red Hat Integration Camel Quarkus not down converted
Red Hat JBoss Data Grid 7 not down converted
Red Hat JBoss Enterprise Application Platform 8 not down converted
Red Hat JBoss Fuse Service Works 6 not down converted
Red Hat Process Automation 7 not down converted
streams for Apache Kafka not down converted
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • Red Hat

Products

  • Red Hat JBoss Enterprise Application Platform 7,
  • Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8,
  • Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9,
  • Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7,
  • Red Hat Single Sign-On 7.6 for RHEL 7,
  • Red Hat Single Sign-On 7.6 for RHEL 8,
  • Red Hat Single Sign-On 7.6 for RHEL 9,
  • RHEL-8 based Middleware Containers,
  • RHSSO 7.6.8,
  • OpenShift Serverless,
  • Red Hat build of Apache Camel for Quarkus,
  • Red Hat build of Apache Camel for Spring Boot 3,
  • Red Hat build of Apache Camel for Spring Boot 4,
  • Red Hat build of Apicurio Registry,
  • Red Hat Build of Keycloak,
  • Red Hat build of OptaPlanner 8,
  • Red Hat build of Quarkus,
  • Red Hat Data Grid 8,
  • Red Hat Fuse 7,
  • Red Hat Integration Camel K,
  • Red Hat Integration Camel Quarkus,
  • Red Hat JBoss Data Grid 7,
  • Red Hat JBoss Enterprise Application Platform 8,
  • Red Hat JBoss Fuse Service Works 6,
  • Red Hat Process Automation 7,
  • streams for Apache Kafka
Technical Analysis